The Digital Multimeter is designed to be safe and accurate. Suitable for electrician test, household use, automotive, industrial electrical problems. Customer Service: KAIWEETS provides a lifetime after sale service and technical support. This digital multimeter is included with 2 AAA batteries (pre-installed), comes with a carrying case and 2 decent cable leads. Multi-Function: This multimeter can test AC/DC Voltage, DC current (Can not for AC current), Resistance, Continuity, Diode Measurement. Sensitive Test: Please make sure the rotary switch is located at the right test range. Data hold function, backlight function helps you test clearly and quickly in a dim place. Safety Operation: IEC Rated CAT III 600V, CE and RoHS certified. Anti-Burn with double fuses. This multimeter has overload protection on all ranges. Widely Used: The Digital Multimeter is designed to be safe and accurate, and suitable for electrician test, household use, automotive, industrial electrical problems.